CN103456266A - Display control apparatus, display control method, program and recording medium - Google Patents
Display control apparatus, display control method, program and recording medium Download PDFInfo
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- CN103456266A CN103456266A CN2013102165358A CN201310216535A CN103456266A CN 103456266 A CN103456266 A CN 103456266A CN 2013102165358 A CN2013102165358 A CN 2013102165358A CN 201310216535 A CN201310216535 A CN 201310216535A CN 103456266 A CN103456266 A CN 103456266A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/10—Intensity circuits
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/04—Structural and physical details of display devices
- G09G2300/0404—Matrix technologies
- G09G2300/0413—Details of dummy pixels or dummy lines in flat panels
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/04—Maintaining the quality of display appearance
- G09G2320/041—Temperature compensation
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0686—Adjustment of display parameters with two or more screen areas displaying information with different brightness or colours
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/10—Special adaptations of display systems for operation with variable images
- G09G2320/103—Detection of image changes, e.g. determination of an index representative of the image change
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Abstract
The invention provides a display control apparatus, a display control method, a program and a recording medium. The display control apparatus includes a dummy pixel region provided in a region different from a display region in which various images are displayed, and a temperature detector detecting a temperature of the dummy pixel region.
Description
Technical field
The disclosure relates to display control unit, display control method, program and recording medium.
Background technology
In Japanese Patent Publication No.2010-250171, Japanese Patent Publication No.2011-209480 and Japanese Patent Publication No.2011-221305, such technology is disclosed, it provides viewing area and dummy pixels zone in display panel, and detects the brightness in dummy pixels zone.
Summary of the invention
Yet Japanese Patent Publication No.2010-250171, Japanese Patent Publication No.2011-209480 and Japanese Patent Publication No.2011-221305 do not mention the temperature of any viewing area.Therefore, expected to make it possible to the accurately technology of the temperature in detection display zone.
According to embodiment of the present disclosure, a kind of display control unit is provided, comprising: the dummy pixels zone is provided in the zone different from the viewing area that wherein shows various images; And Temperature Detector, it detects the temperature in dummy pixels zone.
According to embodiment of the present disclosure, a kind of display control method is provided, comprising: in the dummy pixels zone provided in different zone in the viewing area from wherein showing various images, input is for the signal of temperature detection; And the temperature based on the dummy pixels zone, the signal level of the picture element signal of inputting in the pixel of adjustment viewing area.
According to embodiment of the present disclosure, provide a kind of for making the program below computer realization: drive function, in the dummy pixels zone provided in different zone in the viewing area from wherein showing various images, input is for the signal of temperature detection; And the adjustment function, the temperature based on the dummy pixels zone, the signal level of the picture element signal of inputting in the pixel of adjustment viewing area.
According to embodiment of the present disclosure, a kind of computer-readable recording medium is provided, there is record program as above thereon.
According to embodiment of the present disclosure, can detect the temperature in dummy pixels zone.Therefore because can be according to embodiment of the present disclosure the temperature of the temperature prediction viewing area based on the dummy pixels zone, so the temperature in detection display zone accurately.
According to each embodiment of the present disclosure as above, can detect the temperature in dummy pixels zone.Therefore because can be according to embodiment of the present disclosure the temperature of the temperature prediction viewing area based on the dummy pixels zone, so the temperature in detection display zone accurately.
The accompanying drawing explanation
Fig. 1 is the block diagram of diagram according to the configuration of the display control unit of disclosure embodiment;
Fig. 2 is diagram according to the planimetric map of the configuration of the display panel of embodiment etc.;
Fig. 3 is a cross-sectional view that arranges example of diagram temperature sensor;
Fig. 4 is a cross-sectional view that arranges example of diagram temperature sensor;
Fig. 5 is a cross-sectional view that arranges example of diagram temperature sensor;
Fig. 6 is the process flow diagram of the processing procedure of diagram display control unit;
Fig. 7 is diagram according to the planimetric map of the display panel of the variation of embodiment etc.;
Fig. 8 is diagram according to the planimetric map of the configuration of the display panel of embodiment etc.;
Fig. 9 is the process flow diagram of the processing procedure of diagram display control unit;
Figure 10 is diagram according to the planimetric map of the configuration of the display panel of embodiment etc.;
Figure 11 is the process flow diagram of the processing procedure of diagram display control unit; And
Figure 12 is that diagram is carried out the block diagram of the configuration of the display control unit of processing based on environment temperature.
Embodiment
Below, describe preferred embodiment of the present disclosure in detail with reference to accompanying drawing.Note, in this instructions and accompanying drawing, the structural detail with basic identical function and structure means by same reference numerals, and omits the repeat specification of these structural details.
Mention along band, be described in the following order.
1. the research of display control unit
2. the first embodiment
2-1. the configuration of display control unit
2-2. the processing procedure of display control unit
2-3. change
3. the second embodiment
3-1. the configuration of display control unit
3-2. the processing procedure of display control unit
4. the 3rd embodiment
4-1. the configuration of display control unit
4-2. the processing procedure of display control unit
4-3. change
<1. the research of display control unit >
The inventor studies show that control device always, particularly uses the display control unit of light emitting device (for example, OLED display), and has designed the display control unit according to each embodiment.Therefore, at first the research that the inventor carries out will be described.
Because use the display control unit of light emitting device to depend on that temperature presents the characteristic of the time series change of different luminescence efficiencys and/or brightness, for example, so proposed a kind of environment temperature (, the internal temperature of display control unit) of metering circuit plate the technology of image signal correction.Figure 12 diagram is applied the display control unit 100 of this technology to it.Display control unit 100 comprises signal detector 101, image correction section 102, panel driver 103, display panel 104, image controller 105 and temperature sensor 106.
Above-mentioned Japanese Patent Publication No.2010-250171, Japanese Patent Publication No.2011-209480 and Japanese Patent Publication No.2011-221305 disclose such technology, viewing area and dummy pixels zone are provided in display panel, and detect the brightness in dummy pixels zone.These technology are used for preventing aging (burn-in) of display panel, in these technology, and the brightness of the picture signal of inputting in the brightness adjustment viewing area based on the dummy pixels zone.
Simultaneously, because the user can touch the viewing area (zone that wherein shows various images, in display panel) in display control unit, so often strictly regulate the maximal value of absolute temperature (temperature of viewing area).Therefore, wish that the temperature that suppresses viewing area is no more than predetermined value.
In above-mentioned Japanese Patent Publication No.2010-250171, Japanese Patent Publication No.2011-209480 and Japanese Patent Publication No.2011-221305, public technology is for preventing the aging of viewing area, and is the brightness in this purpose detection dummy pixels zone.That is, Japanese Patent Publication No.2010-250171, Japanese Patent Publication No.2011-209480 and Japanese Patent Publication No.2011-221305 do not mention the temperature in any viewing area or dummy pixels zone.Correspondingly, in Japanese Patent Publication No.2010-250171, Japanese Patent Publication No.2011-209480 and the disclosed technology of Japanese Patent Publication No.2011-221305, the temperature that is difficult to suppress viewing area is not more than predetermined value.
The technology that the temperature that suppresses viewing area is not more than predetermined value can comprise the technology of the temperature of direct measurement viewing area.Yet the temperature distributing disproportionation of viewing area is even, but thermograde is large.In addition, the temperature of viewing area is subject to the impact from the heat of the circuit board of the back that is attached at panel widely.Correspondingly, directly measure the many temperature sensors on the back in temperature desired display zone of viewing area.Therefore, the temperature survey cost of such viewing area is high.
In addition, make the uniform technology of temperature of viewing area can comprise such technology, additional element be provided in display panel, for the temperature that spreads viewing area so that it is even.Such element is such as adopting heat pipe, temperature diffusion sheet etc.Yet, or, in this technology, be difficult to make the temperature of viewing area full and uniform.Therefore, except additional element, still wish many temperature sensors.Correspondingly, this technology spending is more expensive.
In addition, also consider to carry out based on environment temperature the application of the technology of proofreading and correct, for the temperature that suppresses viewing area, be not more than predetermined value.In this technology, during the poorest picture signal (in all pixels or partial pixel, having maximum brightness) is at first inputted viewing area, and measure the environment temperature in this stage and the temperature of viewing area.Then, calculate the temperature of viewing area and the poor Δ between environment temperature.Then, in the situation that monitor environment temperature, when the value that will be added to the environment temperature acquisition by differing from Δ surpasses predetermined value, reduce the brightness of picture signal.Correspondingly, as prerequisite, this technology is wished in the poorest picture signal input viewing area.
Because in viewing area, the brightness of the picture signal of actual input is equal to or less than the brightness of the poorest picture signal, so in most of the cases, the temperature of viewing area is lower than by differing from Δ, being added to the value that environment temperature obtains.In this technology, when the not excessive value that is added to the environment temperature acquisition by differing from Δ surpasses predetermined value, just reduce the brightness of picture signal.Therefore, in this technology, often exceedingly reduce the brightness of picture signal.Correspondingly, this technology is difficult to reach the accurate control of the temperature of viewing area.
For example, suppose that the temperature that when the poorest picture signal of input environment temperature is 40 ℃ and viewing area is 60 ℃, and predetermined value is 55 ℃.In this case, differing from Δ is 20 ℃.Simultaneously, even the picture signal of existence except the poorest picture signal also causes the situation of the environment temperature of 40 ℃.In this case, the temperature of viewing area is less than 60 ℃ (for example, can be about 50 ℃).Because be added to the value that environment temperature obtains and surpass predetermined value by differing from Δ, so even this technology also causes the reduction of the brightness of picture signal in this case.Therefore, in this technology, often exceedingly reduce the brightness of picture signal.
Prevent that the technology that the brightness of picture signal exceedingly reduces from can comprise such technology, according to the picture signal of inputting in viewing area, whether the poorest selection is controlled.Yet, in this technology, when the picture signal of inputting is not the poorest, be difficult to control the temperature of viewing area in viewing area.
In addition, the technology of the temperature of control viewing area can comprise being correlated with between the temperature of estimating environment temperature and viewing area.Yet relevant being not easy between such environment temperature and the temperature of viewing area estimated.
Due to these reasons, above-mentioned technology does not reach the accurate control of the temperature of viewing area.Therefore, the inventor has paid close attention to the technology of the temperature that detects the dummy pixels zone, and has designed the technology according to each embodiment.Can reach the accurate control of the temperature of viewing area according to the technology of each embodiment.That is,, in the technology according to each embodiment, can, according to the temperature (that is, the actual temperature of screen) of viewing area, radiative brightness adjustment be arrived to more suitable value.In addition, because additional element or the temperature sensor of viewing area as above needn't be provided, so can Cost reduction.Below, each embodiment is described.
<2. the first embodiment >
[configuration of 2-1. display control unit]
Then, will to Fig. 5, the configuration according to the display control unit 10 of the first embodiment be described based on Fig. 1.Display control unit 10 comprises signal detector 11, image correction section 12, panel driver 13, image controller 14, temperature sensor 15 and 30 and display panel 20.In addition, display control unit 10 has the hardware configuration of CPU, ROM, RAM, hard disk drive, display panel, temperature sensor etc.ROM records the program of signal detector 11, image correction section 12, panel driver 13 and image controller 14 for realizing display control unit 10.CPU reads and carries out the program recorded in ROM.Correspondingly, such hardware configuration realizes signal detector 11, image correction section 12, panel driver 13, image controller 14, temperature sensor 15 and 30 and display panel 20.Image correction section 12 and image controller 14 are included in adjustment member 10a.
In addition, display control unit 10 can not comprise display panel 20, particularly, and viewing area 21.In this case, display control unit 10 is connected to outside display panel 20.In addition, display control unit 10 can obtain program from various types of recording mediums.That is, according to the program of embodiment, can under the state in being recorded in various types of recording mediums, distribute.
The picture signal input viewing area 21 that panel driver 13 will provide from image correction section 12.In addition, the time point of panel driver 13 when picture signal is inputted in viewing area 21, will be for the signal input dummy pixels zone 22 of temperature detection.As mentioned above, in the first embodiment, because the input of the maximum signal level in picture signal in signal level dummy pixels zone 22, so can detect the temperature under the poorest condition.
Then, image controller 14 obtains mute temperature information from temperature sensor 30.Mute temperature information means the temperature in dummy pixels zone 22.In addition, the time point when image controller 14 obtains mute temperature information, dummy pixels zone 22 is just according to the Heat of Formation of the signal for temperature detection in frame input before.
Then, image controller 14 determines whether to carry out correction based on mute temperature information.Particularly, image controller 14, based on mute temperature information, determines whether the temperature in dummy pixels zone 22 is equal to or less than predetermined value (that is the maximal value of the temperature, viewing area 21 allowed).Then, when the temperature in dummy pixels zone 22 surpasses predetermined value, image controller 14 is determined should carry out correction, because in this case, the temperature in any zone in viewing area 21 may surpass predetermined value.On the other hand, when the temperature in dummy pixels zone 22 is equal to or less than predetermined value, image controller 14 is determined needn't carry out correction.
In addition, when image controller 14 obtains mute temperature information, dummy pixels zone 22 is according to the Heat of Formation of the signal for temperature detection in frame input before.That is, image controller 14, based on according in the heat generation of the signal for temperature detection of frame before, determines whether to carry out the correction of present frame.
Should carry out timing when determining, the control information that image controller 14 generates about peak picture element signal and gain coefficient G_Peak, and it is outputed to image correction section 12.Here, gain coefficient G_Peak is less than 1 value.Thereby image controller 14 can be adjusted the signal level of peak picture element signal.
The value of gain coefficient G_Peak can set in advance, yet it also can calculate at every turn.The computing method of gain coefficient G_Peak specifically do not limit, but for example can consider following methods.That is, image controller 14 obtains the temperature that means dummy pixels zone 22 and for the relevant table between the signal level of the signal of temperature detection.This table for example is stored in ROM.Then, image controller 14 obtains the signal level corresponding to the temperature that is equal to or less than predetermined value from table, and gain coefficient G_Peak is made as to the value by this signal level is obtained divided by the highest signal level.In addition, image controller 14 obtains ambient temperature information from temperature sensor 15.The environment temperature of ambient temperature information indication circuit plate.Image controller 14 can be determined gain coefficient G_Peak based on ambient temperature information and mute temperature information.
Fig. 3 illustrates the concrete configuration in dummy pixels zone 22.Dummy pixels zone 22 comprises drive circuit layer 22a, luminescent layer 22b and resin bed 22c.Drive circuit layer 22a is the layer of the driving circuit of wherein arranging that each pixel comprises, and is provided on the substrate of glass 20a of display panel 20.Luminescent layer 22b is the layer of the light-emitting component of wherein arranging that each pixel comprises.Resin bed 22c protection drive circuit layer 22a and luminescent layer 22b.
Fig. 3 illustrates the concrete example of the position of temperature sensor 30.In this example, temperature sensor 30 is contact temperature sensors.In addition, temperature sensor 30 is provided at luminescent layer 22b side, rather than substrate of glass 20a side.That is, temperature sensor 30 detects the temperature in dummy pixels zone 22 from the image display plane side in dummy pixels zone 22.
Fig. 4 illustrates another example of the position of temperature sensor 30.In this example, temperature sensor 30 is non-contact temperature sensor (for example, infrared temperature sensors).In addition, temperature sensor 30 is provided at luminescent layer 22b side, rather than in substrate of glass 20a side.That is, temperature sensor 30 detects the temperature in dummy pixels zone 22 from the image display plane side in dummy pixels zone 22.In addition, because temperature sensor 30 is with the cordless operation, so it separates and provide with resin bed 22c.Temperature sensor 30 is for example with Infrared irradiation luminescent layer 22b, and the infrared light based on reflection is measured the temperature in dummy pixels zone 22.
Fig. 5 illustrates another example of the position of temperature sensor 30.In this example, temperature sensor 30 is contact temperature sensors.In addition, temperature sensor 30 is provided at substrate of glass 20a side.That is, temperature sensor 30 detects the temperature in dummy pixels zone 22 from the back side in dummy pixels zone 22.
In above-mentioned example, the example shown in Fig. 4 is most preferred.In the example depicted in fig. 4, temperature sensor 30 can be carried out and detect from the image display plane side in dummy pixels zone 22.In addition, because temperature sensor 30 is with the cordless operation, so it does not disturb the heat dissipation from dummy pixels zone 22.That is, in the example depicted in fig. 4, around the environment in dummy pixels zone 22 almost with around viewing area 21 environmental facies with.Correspondingly, the temperature that temperature sensor 30 is measured more approaches the temperature of viewing area 21.
Even consider the thermal resistance due to resin bed 22c, next preferred exemplary is the example shown in Fig. 3, because in the example depicted in fig. 3, temperature sensor 30 can be carried out and detect from the image display plane side in dummy pixels zone 22.In the example depicted in fig. 5, for example, although temperature sensor 30 is subject to the impact (, due to heat dissipation of substrate of glass 20a etc.) of substrate of glass 20a, it can detect more accurately than the estimation from environment temperature the temperature in dummy pixels zone 22.Correspondingly, same in the example shown in application drawing 5, embodiment work is good.
[processing procedure of 2-2. display control unit]
Then, with reference to the processing procedure of the flow chart description display control unit 10 shown in figure 6.
At step S10, signal detector 11 detects the picture signal of present frame, and it is outputed to image correction section 12 and image controller 14.Then, image controller 14 detected peaks picture element signal from picture signal.That is, image controller 14 detects the highest signal level (maximum brightness of picture element signal; Brightness 1).
Then, image controller 14 obtains mute temperature information, and determines whether to carry out correction based on mute temperature information.In addition, the time point when image controller 14 obtains mute temperature information, dummy pixels zone 22 is just according to the Heat of Formation of the signal for temperature detection in frame input before.
Particularly, image controller 14, based on mute temperature information, determines whether the temperature in dummy pixels zone 22 is equal to or less than predetermined value.Then, when the temperature in dummy pixels zone 22 surpasses predetermined value, image controller 14 is determined should carry out correction, and, when the temperature in dummy pixels zone 22 is equal to or less than predetermined value, determines and needn't carry out correction.
Then, when determining, should carry out timing, the control information that image controller 14 generates about peak picture element signal and gain coefficient G_Peak, and it is outputed to image correction section 12.On the other hand, when determining, needn't carry out timing, image controller 14 outputs about the not control information of peak picture element signal to image correction section 12.
Then, when image correction section 12 is obtained control information from image controller 14, it is based on the control information image signal correction.Particularly, image correction section 12 is extracted the peak picture element signal from picture signal, and the signal level of peak picture element signal is multiplied by gain coefficient G_Peak, thus the correction signal level.Then, image correction section 12 is made as correct signal level by the signal level of peak picture element signal.Thereby, image correction section 12 image signal corrections.That is, in the first embodiment, the peak value in individual element ground detection signal level, and level and smooth this peak value, thereby image signal correction.Thereby, reduce the temperature of viewing area 21.Image signal output after image correction section 12 will be proofreaied and correct is to panel driver 13.In addition, image correction section 12 generates has the signal for temperature detection of correct signal level, and it is outputed to panel driver 13.
On the other hand, when image correction section 12 is obtained not control information, it outputs to panel driver 13 same as before by picture signal.In addition, image correction section 12 is extracted the peak picture element signal from picture signal, generates the signal for temperature detection of the signal level (that is, the highest signal level) with peak picture element signal, and it is outputed to panel driver 13.Correspondingly, in the first embodiment, even at unnecessary execution timing, also allow dummy pixels zone 22 Heat of Formations.Thereby, can monitor more accurately the temperature in dummy pixels zone 22.
At step S20, the picture signal input viewing area 21 that panel driver 13 will provide from image correction section 12.In addition, the time point of panel driver 13 when picture signal is inputted in viewing area 21, will be for the signal input dummy pixels zone 22 of temperature detection.Thereby, dummy pixels zone 22 Heat of Formations.The temperature in dummy pixels zone 22 is for the processing of next frame.
In addition, display control unit 10 can perform step the processing in S10 and S20 to all frames, and can carry out predetermined frame.Each embodiment and variation that this is applicable to mention later.
As mentioned above, in the first embodiment, display control unit 10 can detect the temperature in dummy pixels zone 22.Then, display control unit 10 will be inputted dummy pixels zone 22 for the signal of temperature detection, and the temperature based on the dummy pixels zone is adjusted the signal level of picture signal.Correspondingly, display control unit 10 can accurately be controlled the temperature of (detection) viewing area 21, and in addition, the temperature that can suppress viewing area 21 is not more than predetermined value.
In addition, in the first embodiment, because can be only by temperature sensor 30 is increased to the temperature that detection display zone 21 is come in dummy pixels zone 22, so more simply configure the temperature that makes it possible to detection display zone 21.Correspondingly, in the first embodiment, can Cost reduction.
In addition, because display control unit 10 will be made as the highest signal level of peak picture element signal for the signal level of the signal of temperature detection, so can suppress definitely the temperature of viewing area 21, be not more than predetermined value.
In addition, because display control unit 10 detects the temperature in dummy pixels zone 22 from the image display plane side in dummy pixels zone 22, so can suppress definitely the temperature of viewing area 21, be not more than predetermined value.
[2-3. variation]
The variation of the first embodiment then, is described.As shown in Figure 2, in the first embodiment, dummy pixels zone 22 is provided at below viewing area 21.Simultaneously, display panel 20 is tending towards having at an upper portion thereof higher temperature, because the hot-air generated in display control unit 10 moves up.Correspondingly, exist poor between the temperature of 21 top, viewing area and bottom to become large situation.Therefore, sometimes should carry out and control according to the balance between tip temperature and bottom temperature.
Therefore, in this changes, on viewing area 21 and below dummy pixels zone 40 and 41 and corresponding to these temperature sensor 50 and 51, as shown in Figure 7 are provided respectively.Panel driver 13 is by the identical input of the signal for temperature detection dummy pixels zone 40 and 41.That is, for identical purpose, provide dummy pixels zone 40 and 41 and temperature sensor 50 and 51.
The temperature information of image controller 14 based on providing from temperature sensor 50 and 51, mean value or the maximal value of the temperature in calculating dummy pixels zone 40 and 41.Here, image controller 14, according to situation and the characteristic of display panel 20, selectively adopts mean value or maximal value.
For example, it is higher than the temperature in dummy pixels zone 41 that the temperature in dummy pixels zone 40 is tending towards, because dummy pixels zone 40 21 tops, close viewing area layouts, and dummy pixels zone 41 is arranged near 21 bottoms, viewing area.Correspondingly, when image controller 14 adopts maximal value, image controller 14 adopts the temperature in dummy pixels zone 40 basically.Yet, when the temperature difference between dummy pixels zone 40 and dummy pixels zone 41 is very large, the temperature in dummy pixels zone 40 is extremely larger than the temperature of viewing area 21 temperature of its bottom (particularly).
Correspondingly, when the temperature when image controller 14 based on dummy pixels zone 40 is adjusted picture signal, this means with the surplus of the actual temperature to viewing area 21 and carry out and adjust.Even the temperature that in this case, image controller 14 can suppress viewing area 21 is not more than predetermined value.Yet above-mentioned surplus is preferably less, because suppressing the transition of picture signal, expectation proofreaies and correct.
Therefore, when the temperature difference between dummy pixels zone 40 and dummy pixels zone 41 is in preset range, the maximal value (temperature in dummy pixels zone 40 basically) of the temperature of image controller 14 based on dummy pixels zone 40 and 41 is adjusted picture signal.On the other hand, when temperature difference surpasses preset range, the mean value of the temperature of image controller 14 based on dummy pixels zone 40 and 41 is adjusted picture signal.Thereby the temperature that image controller 14 can suppress viewing area 21 is not more than predetermined value, in addition, can reduce surplus.That is, image controller 14 can be carried out and control according to the balance between the temperature of the temperature on 21 top, viewing area and bottom.In addition, the method for adjustment of picture signal is with identical in the first embodiment.
Schematically, image controller 14 determines whether the maximal value of temperature or mean value surpass predetermined value, and when the maximal value of temperature or mean value during over predetermined value, it exports above-mentioned control information to image correction section 12.
As mentioned above, in this changes, display control unit 10 is by the input of the signal for temperature detection in same signal level dummy pixels zone 40 and 41, and the mean value of the temperature based on dummy pixels zone 40 and 41 is adjusted the signal level of picture element signal.Correspondingly, the temperature that display control unit 10 can suppress viewing area 21 definitely is not more than predetermined value.
In addition, display control unit 10 is by the input of the signal for temperature detection in same signal level dummy pixels zone 40 and 41, and the maximal value of the temperature based on dummy pixels zone 40 and 41 is adjusted the signal level of picture element signal.Correspondingly, the temperature that display control unit 10 can suppress viewing area 21 definitely is not more than predetermined value.In addition, the second embodiment that this variation can be applied to describe after a while.In this case, the signal for temperature detection of inputting each dummy pixels zone will have the highest signal level of the average signal level of cut zone 21a.
<3. the second embodiment >
[configuration of 3-1. display control unit]
Then, based on Fig. 8, the configuration according to the display control unit 10 of the second embodiment is described.The difference of it and the first embodiment is described in addition, here.As shown in Figure 8, in a second embodiment, viewing area 21 is divided into a plurality of cut zone (piece) 21a.And in addition, in Fig. 8, viewing area 21 is divided into 25 cut zone 21a, yet the quantity of cut zone 21a is not limited to this quantity.Preferably, the quantity of cut zone 21a is far away more than 25.Each cut zone 21a comprises at least two pixels.As mentioned after a while, the size of cut zone 21a preferably is less than the size in dummy pixels zone 22.
When image correction section 12 is obtained control information, it is based on the control information image signal correction.Particularly, the signal level that image correction section 12 will be inputted the picture signal of inputting in the peak cut zone is multiplied by gain coefficient G_Peak, thus the correction signal level.Then, image correction section 12 is made as correct signal level by the signal level of peak cut zone.Thereby, image correction section 12 image signal corrections.Image signal output after image correction section 12 will be proofreaied and correct is to panel driver 13.In addition, image correction section 12 generates has the signal for temperature detection of correct signal level, and it is outputed to panel driver 13.
That is, in a second embodiment, the peak value in piece ground (cut zone ground) one by one detection signal level one by one, and this peak value is smoothed, thus image signal correction.Thereby, reduce the temperature of viewing area 21.The reason of processing like this is as follows.
That is,, in the first embodiment, be made as the signal level of peak picture element signal for the signal level of the signal of temperature detection.Yet, because the pixel (that is, the peak pixel) of wherein inputting the peak picture element signal is for each picture signal difference, so the peak pixel frequently moves.In addition, the Temperature Distribution of peak pixel is to surrounding pixel.In addition, the peak pixel is little and be subject to surrounding environment influence.Correspondingly, the signal level of peak pixel does not sometimes affect the temperature of viewing area 21.
In addition, in this case, the temperature in dummy pixels zone 22 is higher than the temperature of peak pixel, because comprise that the temperature dispersion in the dummy pixels zone 22 of a plurality of pixels arrives the degree less than peak pixel.Correspondingly, image controller 14 is carried out and is adjusted with the surplus of the actual temperature to viewing area 21.Yet as mentioned above, this surplus is preferably less.
On the other hand, in a second embodiment, be made as the signal level of peak cut zone for the signal level of the signal of temperature detection.The temperature dispersion that at least comprises the peak cut zone of a plurality of pixels arrives the degree less than peak pixel.Correspondingly, the temperature of peak cut zone more approaches the temperature in dummy pixels zone 22.In other words, surplus can be little.Correspondingly, in a second embodiment, can control more accurately the temperature of viewing area 21.
The size of cut zone 21a is determined according to above-mentioned context.Particularly, the size of cut zone 21a is such size, and wherein the thermograde of cut zone 21a (being correlated with between signal level and temperature) is identical with the thermograde in dummy pixels zone 22.Thereby, because the temperature in dummy pixels zone 22 is identical with the temperature of peak cut zone, so image controller 14 can be controlled the temperature of viewing area 21 more accurately.
In addition, cut zone 21a is preferably little than dummy pixels zone 22.Reason is as follows.That is,, in the situation that cut zone 21a is larger than dummy pixels regional 22, when the picture element signal in the same signal level is inputted in these, the temperature in dummy pixels zone 22 is lower than the temperature of cut zone 21a.In addition because dummy pixels zone 22 around not luminous, so the temperature in dummy pixels zone 22 is more than the temperature dispersion of cutting apart regional 21a.When the temperature in dummy pixels zone 22 during lower than the temperature of cut zone 21a, should consider poor between the temperature of the temperature in dummy pixels zone 22 and cut zone 21a, so that the temperature that image controller 14 suppresses viewing areas 21 is not more than predetermined value.Correspondingly, the temperature that image controller 14 is controlled viewing area 21 is consuming time.
On the other hand, in the situation that cut zone 21a is less than dummy pixels zone 22, when the picture element signal in the same signal level is inputted in these, the temperature in dummy pixels zone 22 is equal to or higher than the temperature of cut zone 21a.Correspondingly, image controller 14 can be more accurately and is controlled exactly the temperature of viewing area 21.In addition, the size of cut zone 21a is preferably as far as possible little.
[processing procedure of 3-2. display control unit]
Then, with reference to the processing procedure of the flow chart description display control unit 10 shown in figure 9.At first, at step S30, signal detector 11 detects the picture signal of present frame, and it is outputed to image correction section 12 and image controller 14.Then, image controller 14 obtains mute temperature information from temperature sensor 30.In addition, the time point when image controller 14 obtains mute temperature information, dummy pixels zone 22 according to the signal for temperature detection in frame input before just at Heat of Formation.
Then, image controller 14 calculates the average signal level (brightness 1 to 25) of the picture element signal in input cut zone 21a.Then, at step S40, image controller 14 detects has the cut zone 21a as the average signal level of highest signal level (brightness x), that is, and and the peak cut zone.That is the highest signal level that, image controller 14 detects in average signal level.
Then, image controller 14 determines whether to carry out correction based on mute temperature information.Specifically process with identical in the first embodiment.Should carry out timing when determining, the control information that image controller 14 generates about peak cut zone and gain coefficient G_Peak, and it is outputed to image correction section 12.On the other hand, when determining, needn't carry out timing, image controller 14 outputs output to panel driver 13 about the not control information of peak cut zone.
Then, when image correction section 12 is obtained control information from image controller 14, it is based on the control information image signal correction.Particularly, the signal level that image correction section 12 will be inputted the picture signal in the peak cut zone is multiplied by gain coefficient G_Peak, thus the correction signal level.Then, image correction section 12 is made as correct signal level by the signal level of peak cut zone.Thereby, image correction section 12 image signal corrections.Image signal output after image correction section 12 will be proofreaied and correct is to panel driver 13.In addition, image correction section 12 generates the signal for temperature detection of the average signal level with correct signal level, and it is outputed to panel driver 13.
On the other hand, when image correction section 12 is obtained not control information, it outputs to panel driver 13 same as before by picture signal.In addition, image correction section 12 generates the signal for temperature detection of the average signal level with the picture signal in input peak cut zone, and it is outputed to panel driver 13.Correspondingly, in a second embodiment, even at unnecessary execution timing, also allow dummy pixels zone 22 Heat of Formations.Thereby, can monitor more accurately the temperature in dummy pixels zone 22.
At step S50, the picture signal input viewing area 21 that panel driver 13 will provide from image correction section 12.In addition, the time point in the time of in picture signal input viewing area 21, panel driver 13 will be for the signal input dummy pixels zone 22 of temperature detection.Thereby, dummy pixels zone 22 Heat of Formations.The temperature in dummy pixels zone 22 is for the processing of next frame.
As mentioned above, in a second embodiment, because be made as the highest signal level of average signal level for the signal level of the signal of temperature detection, so display control unit 10 can be controlled the temperature of (detection) viewing area 21 more accurately.
<4. the 3rd embodiment >
[configuration of 4-1. display control unit]
Then, based on Figure 10, the configuration according to the display control unit 10 of the 3rd embodiment is described.In addition, its different from the first embodiment is described here.As shown in figure 10, provide dummy pixels zone 60 and 61 and corresponding to these temperature sensor 70 and 71 below viewing area 21.
Then, image controller 14 obtains the first mute temperature information from temperature sensor 70, and obtains the second mute temperature information from temperature sensor 71.Then, image controller 14 determines whether to carry out correction based on these mute temperature informations.Particularly, image controller 14 determines whether the temperature in dummy pixels zone 60 and 61 is equal to or less than predetermined value.Here, the input of the signal for temperature detection dummy pixels zone 60 with signal level of peak picture element signal, and the input of the signal for the temperature detection dummy pixels zone 61 with ensemble average signal level (average signal levels of all picture element signals), as mentioned back.
Then, when the temperature in dummy pixels zone 60 or dummy pixels zone 61 surpasses predetermined value, image controller 14 is determined should carry out correction, and, when the temperature in dummy pixels zone 60 and 61 both is equal to or less than predetermined value, determines and needn't carry out correction.Then, when determining, should carry out timing, which that should carry out that the first correction and second proofreaies and correct image controller 14 further determine.The first correction is the peak picture element signal to be multiplied by the correction of gain coefficient G_Peak, and the second correction is the ensemble average signal level to be multiplied by the correction of gain coefficient G_Ave.Here, gain coefficient G_Ave is less than 1 value.Gain coefficient G_Ave can set in advance, yet it also can calculate at every turn.Circular is with identical in the first embodiment.
When the temperature in dummy pixels zone 60, during much larger than the temperature (difference between them is greater than and pre-determines reference value) in dummy pixels zone 61, image controller 14 is determined should carry out the first correction.On the other hand, when the temperature in dummy pixels zone 60 is equal to or greater than the temperature in dummy pixels zone 61, image controller 14 is determined should carry out the second correction.
Should carry out the first timing when determining, the first control information that image controller 14 generates about peak picture element signal and gain coefficient G_Peak, and it is outputed to image correction section 12.On the other hand, when determining, should carry out the second timing, the second control information that image controller 14 generates about peak picture element signal and gain coefficient G_Ave, and it is outputed to image correction section 12.
When image correction section 12 is obtained the first control information, it is based on the first control information image signal correction.Particularly, image correction section 12 is extracted the peak picture element signal from picture signal, and the signal level of peak picture element signal is multiplied by gain coefficient G_Peak, thus the correction signal level.Then, image correction section 12 is made as correct signal level by the signal level of peak picture element signal.Thereby, image correction section 12 image signal corrections.
Image signal output after image correction section 12 will be proofreaied and correct is to panel driver 13.In addition, image correction section 12 generates has the first signal for temperature detection of correct signal level, and it is outputed to panel driver 13.In addition, the arithmetic mean of the signal level of all picture element signals that the picture signal after image correction section 12 calculation corrections comprises, thus calculate the ensemble average signal level.Then, image correction section 12 generates has the secondary signal for temperature detection of ensemble average signal level, and it is outputed to panel driver 13.In addition, because the first correction is the correction for the peak picture element signal, so basically maintain the ensemble average signal level.
When image correction section 12 is obtained the second control information, it is based on the second control information image signal correction.Particularly, image correction section 12 is multiplied by gain coefficient G_Ave by all picture element signals, thereby calculates the correct signal level of each picture element signal.Then, image correction section 12 is made as correct signal level by the signal level of each picture element signal.Thereby, image correction section 12 image signal corrections.
Image signal output after image correction section 12 will be proofreaied and correct is to panel driver 13.In addition, image correction section 12 detects the pixel with peak picture element signal based on the second control information, that is, and and the peak pixel.Then, image correction section 12 generates the first signal for temperature detection of the correct signal level with peak pixel, and it is outputed to panel driver 13.In addition, the arithmetic mean of the signal level of all picture element signals that the picture signal after image correction section 12 calculation corrections comprises, thus calculate the ensemble average signal level.Then, image correction section 12 generates has the secondary signal for temperature detection of ensemble average signal level, and it is outputed to panel driver 13.In addition, because carry out second for all picture element signals, proofread and correct, so the ensemble average signal level reduces before correction.
The picture signal input viewing area 21 that panel driver 13 will provide from image correction section 12, and at this time point, dummy pixels zone 60 will be outputed to for the first signal of temperature detection, and dummy pixels zone 61 will be outputed to for the secondary signal of temperature detection.
[processing procedure of 4-2. display control unit]
Then, with reference to the processing procedure of the flow chart description display control unit 10 shown in Figure 11.In addition, the processing before proofreading and correct is described.At first, signal detector 11 detected image signals (present frame), and it is outputed to image correction section 12.
Then, at step S60, image correction section 12 is extracted the peak picture element signal from picture signal, and generates the first signal for temperature detection of the signal level with peak picture element signal.Image correction section 12 arrives panel driver 13 by image signal output.In addition, image correction section 12 generates the first signal that is used for temperature detection and it is outputed to panel driver 13.
Then, the picture signal input viewing area 21 that panel driver 13 will provide from image correction section 12, and, at this time point, will output to for the first signal of temperature detection dummy pixels zone 60.
At step S70, temperature sensor 70 detects the temperature in dummy pixels zone 60, and the first temperature information is outputed to image controller 14.
On the other hand, at step S80, the arithmetic mean of the signal level of all picture element signals that image correction section 12 computed image signals comprise, thus calculate the ensemble average signal level.Then, image correction section 12 generates has the secondary signal for temperature detection of ensemble average signal level, and it is outputed to panel driver 13.
Then, the time point in the time of the picture signal input viewing area 21 provided from image correction section 12, panel driver 13 will output to for the secondary signal of temperature detection dummy pixels zone 61.
At step S90, temperature sensor 71 detects the temperature in dummy pixels zone 61, and the second temperature information is outputed to image controller 14.The processing executed in parallel of the processing of step S60 and S70 and step S80 and S90.
At step S100, signal detector 11 detected image signals (present frame), and it is outputed to image correction section 12 and image controller 14.Image controller 14 is from picture signal detected peaks picture element signal.That is, image controller 14 detects the highest signal level of picture element signal.
Then, image controller 14, based on the first mute temperature information and the second mute temperature information, determines whether to carry out correction.Particularly, when the temperature in dummy pixels zone 60 or dummy pixels zone 61 surpasses predetermined value, image controller 14 is determined should carry out correction.On the other hand, when the temperature in dummy pixels zone 60 and 61 is equal to or less than predetermined value, image controller 14 is determined needn't carry out correction.Then, when determining, should carry out timing, which that should carry out that the first correction and second proofreaies and correct image controller 14 further determine.
When the temperature in dummy pixels zone 60, during much larger than the temperature in dummy pixels zone 61, image controller 14 is determined should carry out the first correction.On the other hand, when the temperature in dummy pixels zone 60 is equal to or greater than the temperature in dummy pixels zone 61, image controller 14 is determined should carry out the second correction.
Should carry out the first timing when determining, the first control information that image controller 14 generates about peak picture element signal and gain coefficient G_Peak, and it is outputed to image correction section 12.On the other hand, when determining, should carry out the second timing, the second control information that image controller 14 generates about peak picture element signal and gain coefficient G_Ave, and it is outputed to image correction section 12.In addition, when determining, needn't carry out timing, image controller 14 is exported with not control information identical in the first embodiment to image correction section 12.
When obtaining not control information, image correction section 12 and panel driver 13 are carried out with step S60 to above-mentioned processing identical in S90.
On the other hand, when image correction section 12 is obtained the first control information, it is based on the first control information image signal correction.Particularly, image correction section 12 is extracted the peak picture element signal from picture signal, and the signal level of peak picture element signal is multiplied by gain coefficient G_Peak, thus the correction signal level.Then, image correction section 12 is made as correct signal level by the signal level of peak picture element signal.Thereby, image correction section 12 image signal corrections.
Image signal output after image correction section 12 will be proofreaied and correct is to panel driver 13.In addition, image correction section 12 generates has the first signal for temperature detection of correct signal level, and it is outputed to panel driver 13.In addition, the arithmetic mean of the signal level of all picture element signals that the picture signal after image correction section 12 calculation corrections comprises, thus calculate the ensemble average signal level.Then, image correction section 12 generates has the secondary signal for temperature detection of ensemble average signal level, and it is outputed to panel driver 13.
When image correction section 12 is obtained the second control information, it is based on the second control information image signal correction.Particularly, image correction section 12 is multiplied by gain coefficient G_Ave by all picture element signals, thereby calculates the correct signal level of each picture element signal.Then, image correction section 12 is made as correct signal level by the signal level of each picture element signal.Thereby, image correction section 12 image signal corrections.
Image signal output after image correction section 12 will be proofreaied and correct is to panel driver 13.In addition, image correction section 12 detects the pixel with peak picture element signal based on the second control information, that is, and and the peak pixel.Then, image correction section 12 generates the first signal for temperature detection of the correct signal level with peak pixel, and it is outputed to panel driver 13.In addition, the arithmetic mean of the signal level of all picture element signals that the picture signal after image correction section 12 calculation corrections comprises, thus calculate the ensemble average signal level.Then, image correction section 12 generates has the secondary signal for temperature detection of ensemble average signal level, and it is outputed to panel driver 13.
The picture signal input viewing area 21 that panel driver 13 will provide from image correction section 12, and at this time point, dummy pixels zone 60 will be outputed to for the first signal of temperature detection, and dummy pixels zone 61 will be outputed to for the secondary signal of temperature detection.Temperature sensor 70 is measured the temperature in dummy pixels zone 60, and exports the first temperature information to image controller 14.Temperature sensor 71 is measured the temperature in dummy pixels zone 61, and exports the second temperature information to image controller 14.After this, display control unit 10 end process.The processing of repeating step S100 in next and circulation subsequently.Can carry out or predetermined frame is performed step to each frame the processing of S100.
According to the 3rd embodiment, display control unit 100 will be inputted the signal level of the signal for temperature detection in each dummy pixels zone, the signal level that is made as mutual difference and selects from the ensemble average signal level of the highest signal level of picture element signal and picture element signal.Correspondingly, display control unit 10 can be controlled the temperature of (detection) viewing area 21 more accurately.
Particularly, when the highest signal level of picture element signal during much larger than the ensemble average signal level, display control unit 10 can be carried out the first correction, and, when the highest signal level of picture element signal is equal to or greater than the ensemble average signal level, display control unit 10 can be carried out the second correction.Correspondingly, the temperature that display control unit 10 can control by stages viewing area 21.In addition, by the second correction, hold picture signal with repair and maintenance and compare, can reduce the temperature of viewing area 21.
[4-3. variation]
The variation of the 3rd embodiment then, is described.In this changes, the highest signal level in the average signal level that adopts the second embodiment to describe for the signal level of the first signal of temperature detection.In this case, the first correction is and processing identical in the second embodiment.Schematically, the signal level that image correction section 12 will be inputted the picture signal in the peak cut zone is multiplied by gain coefficient G_Peak, thus the correction signal level.Then, image correction section 12 is made as correct signal level by the signal level of peak cut zone.Equally in this case, can reach the effect identical with the 3rd embodiment, and also can reach in addition the effect identical with the second embodiment.
One skilled in the art will appreciate that and depend on designing requirement and other factors, various modifications, combination, sub-portfolio can occur and substitute, as long as they are in the scope of claims or its equivalent.
In addition, present technique can also configure as follows.
(1) a kind of display control unit comprises:
The dummy pixels zone, be provided in the zone different from the viewing area that wherein shows various images; And
Temperature Detector, the temperature in detection dummy pixels zone.
(2) according to (1) described display control unit, comprising:
Panel driver, in the dummy pixels zone of the representative area as viewing area, input is for the signal of temperature detection; And
Adjustment member, the temperature based on the dummy pixels zone, the signal level of the picture element signal of inputting in the pixel of adjustment viewing area.
(3) according to (2) described display control unit,
Wherein, described adjustment member detects the highest signal level of picture element signal, and will be set to for the signal level of the signal of temperature detection the highest signal level of picture element signal.
(4) according to (2) described display control unit,
Wherein, described viewing area is divided into a plurality of cut zone, and
Wherein, described adjustment member is calculated the average signal level of the picture element signal of inputting in a plurality of cut zone, and will be set to for the signal level of the signal of temperature detection the highest signal level of average signal level.
(5) according to (4) described display control unit,
Wherein, provide a plurality of dummy pixels zone and a plurality of Temperature Detectors, and
Wherein, the highest signal level of the picture element signal of inputting in the pixel that described adjustment member detection display zone comprises, and the signal level of the signal for temperature detection inputted in each dummy pixels zone is set to such signal level, and these signal levels are mutually different and select from the population mean signal level of the highest signal level of the highest signal level of picture element signal, average signal level and picture element signal.
(6) arrive the arbitrary described display control unit of (4) according to (2),
Wherein, provide a plurality of dummy pixels zone and a plurality of Temperature Detectors, and
Wherein, described adjustment member is the signal for temperature detection of input in same signal level in each of a plurality of dummy pixels zone, and the mean value of the temperature based on a plurality of dummy pixels zone is adjusted the signal level of picture element signal.
(7) arrive the arbitrary described display control unit of (4) according to (2),
Wherein, provide a plurality of dummy pixels zone and a plurality of Temperature Detectors, and
Wherein, described adjustment member is the signal for temperature detection of input in same signal level in each of a plurality of dummy pixels zone, and the maximal value of the temperature based on a plurality of dummy pixels zone is adjusted the signal level of picture element signal.
(8) arrive the arbitrary described display control unit of (7) according to (1),
Wherein, described Temperature Detector detects the temperature in dummy pixels zone from the image display plane side in dummy pixels zone.
(9) a kind of display control method comprises:
In the dummy pixels zone provided in different zone in the viewing area from wherein showing various images, input is for the signal of temperature detection; And
Temperature based on the dummy pixels zone, the signal level of the picture element signal of inputting in the pixel of adjustment viewing area.
(10) a kind of for making the program below computer realization:
Drive function, in the dummy pixels zone provided in different zone in the viewing area from wherein showing various images, input is for the signal of temperature detection; And
Adjust function, the temperature based on the dummy pixels zone, the signal level of the picture element signal of inputting in the pixel of adjustment viewing area.
(11) a kind of computer-readable recording medium, have the record described program of basis (10) thereon.
The disclosure is contained in the relevant theme of disclosed theme in the Japanese priority patent application JP2012-126053 submitted to Japan Office on June 1st, 2013, and by its full content, mode by reference is incorporated in this.
Claims (11)
1. a display control unit comprises:
The dummy pixels zone, be provided in the zone different from the viewing area that wherein shows various images; And
Temperature Detector, the temperature in detection dummy pixels zone.
2. display control unit according to claim 1 comprises:
Panel driver, in the dummy pixels zone of the representative area as viewing area, input is for the signal of temperature detection; And
Adjustment member, the temperature based on the dummy pixels zone, the signal level of the picture element signal of inputting in the pixel of adjustment viewing area.
3. display control unit according to claim 2,
Wherein, described adjustment member detects the highest signal level of picture element signal, and will be set to for the signal level of the signal of temperature detection the highest signal level of picture element signal.
4. display control unit according to claim 2,
Wherein, described viewing area is divided into a plurality of cut zone, and
Wherein, described adjustment member is calculated the average signal level of the picture element signal of inputting in a plurality of cut zone, and will be set to for the signal level of the signal of temperature detection the highest signal level of average signal level.
5. display control unit according to claim 4,
Wherein, provide a plurality of dummy pixels zone and a plurality of Temperature Detectors, and
Wherein, the highest signal level of the picture element signal of inputting in the pixel that described adjustment member detection display zone comprises, and the signal level of the signal for temperature detection inputted in each dummy pixels zone is set to such signal level, and these signal levels are mutually different and select from the population mean signal level of the highest signal level of the highest signal level of picture element signal, average signal level and picture element signal.
6. display control unit according to claim 2,
Wherein, provide a plurality of dummy pixels zone and a plurality of Temperature Detectors, and
Wherein, described adjustment member is the signal for temperature detection of input in same signal level in each of a plurality of dummy pixels zone, and the mean value of the temperature based on a plurality of dummy pixels zone is adjusted the signal level of picture element signal.
7. display control unit according to claim 2,
Wherein, provide a plurality of dummy pixels zone and a plurality of Temperature Detectors, and
Wherein, described adjustment member is the signal for temperature detection of input in same signal level in each of a plurality of dummy pixels zone, and the maximal value of the temperature based on a plurality of dummy pixels zone is adjusted the signal level of picture element signal.
8. display control unit according to claim 1,
Wherein, described Temperature Detector detects the temperature in dummy pixels zone from the image display plane side in dummy pixels zone.
9. a display control method comprises:
In the dummy pixels zone provided in different zone in the viewing area from wherein showing various images, input is for the signal of temperature detection; And
Temperature based on the dummy pixels zone, the signal level of the picture element signal of inputting in the pixel of adjustment viewing area.
10. one kind for making the program below computer realization:
Drive function, in the dummy pixels zone provided in different zone in the viewing area from wherein showing various images, input is for the signal of temperature detection; And
Adjust function, the temperature based on the dummy pixels zone, the signal level of the picture element signal of inputting in the pixel of adjustment viewing area.
11. a computer-readable recording medium, have record program as claimed in claim 10 thereon.
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| Application Number | Priority Date | Filing Date | Title |
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| JP2012126053A JP2013250475A (en) | 2012-06-01 | 2012-06-01 | Display control apparatus, display control method, program and recording medium |
| JP2012-126053 | 2012-06-01 |
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| US9195281B2 (en) | 2013-12-31 | 2015-11-24 | Ultravision Technologies, Llc | System and method for a modular multi-panel display |
| US9582237B2 (en) | 2013-12-31 | 2017-02-28 | Ultravision Technologies, Llc | Modular display panels with different pitches |
| US9416551B2 (en) | 2013-12-31 | 2016-08-16 | Ultravision Technologies, Llc | Preassembled display systems and methods of installation thereof |
| US20150187237A1 (en) | 2013-12-31 | 2015-07-02 | Ultravision Holdings, Llc | System and Method for a Modular Multi-Panel Display |
| JP6277549B2 (en) * | 2014-03-10 | 2018-02-14 | Ｔｉａｎｍａ Ｊａｐａｎ株式会社 | Surface illumination device and liquid crystal display device |
| US9311847B2 (en) * | 2014-07-16 | 2016-04-12 | Ultravision Technologies, Llc | Display system having monitoring circuit and methods thereof |
| JP6742703B2 (en) * | 2015-08-05 | 2020-08-19 | 三菱電機株式会社 | LED display device |
| WO2017061195A1 (en) * | 2015-10-05 | 2017-04-13 | 三菱電機株式会社 | Light-emitting diode display device |
| US20220309999A1 (en) * | 2019-09-05 | 2022-09-29 | Mitsubishi Electric Corporation | Image display device, display control device, image processing device, and recording medium |
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| JP2008292865A (en) * | 2007-05-25 | 2008-12-04 | Sony Corp | Cathode potential control device, self-luminous display device, electronic equipment, and cathode potential control method |
| JP2008299019A (en) * | 2007-05-30 | 2008-12-11 | Sony Corp | Cathode potential controller, self light emission display device, electronic equipment and cathode potential control method |
| JP5293367B2 (en) | 2009-04-17 | 2013-09-18 | セイコーエプソン株式会社 | Self-luminous display device and electronic device |
| JP5335006B2 (en) * | 2010-02-26 | 2013-11-06 | 三菱電機株式会社 | Infrared solid-state image sensor |
| JP5598053B2 (en) | 2010-03-30 | 2014-10-01 | ソニー株式会社 | Signal processing device, display device, electronic device, signal processing method and program |
| JP5440340B2 (en) | 2010-04-09 | 2014-03-12 | ソニー株式会社 | Image display device and image display method |
| US8860658B2 (en) * | 2010-05-17 | 2014-10-14 | Creator Technology B.V. | Electrophoretic display unit and method for driving an electrophoretic display panel |
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